HTOOL SA8 Spectrum Analyzer, HT004 Preamplifier, and HT03 Magnetic Field Probe User Manual

1. Introduction and Overview

This manual provides instructions for the HTOOL SA8 Spectrum Analyzer and Signal Generator, the HTOOL HT004 Full Band Low Noise Preamplifier, and the HTOOL HT03 Magnetic Field Probe. These devices are designed for analyzing and measuring electromagnetic signals across a wide frequency range.

The HTOOL SA8 is a portable spectrum analyzer and signal source capable of displaying signal spectra from 35 to 6200 MHz. It is an upgraded version of the SA6, featuring multi-language support (Russian, English, Chinese) and continuous system updates. It can process signals from various technologies including Wi-Fi, 2G, 3G, 4G, LTE, CDMA, DCS, GSM, GPRS, GLON, and ASS.

The HTOOL HT004 is a 100K-6GHz full band low noise preamplifier designed to boost weak signals, enhancing the measurement capabilities of the spectrum analyzer.

The HTOOL HT03 is a 9KHz-3GHz near-field magnetic field probe set, used for detecting electromagnetic radiation and locating interference sources in close proximity to the measurement target.

2. Setup

2.1 HTOOL SA8 Spectrum Analyzer

1. Power On/Off: Locate the side push switch (OFF/ON) on the device. Slide it to the 'ON' position to power on the SA8.
2. Initial Boot: The device will display 'HTOOL SA8' and 'Frequency: 35-6200Mhz Spectrum Analyzer & Signal Generator'.
3. Language Selection: If the menu is not in your preferred language, navigate to the 'Device' menu. You can select between Chinese, Russian, and English systems.
4. Connecting Cables: For frequency measurement, install two RG316 cables respectively to the SMA ports on the SA8.

2.2 HTOOL HT004 Preamplifier

1. Power Supply: Connect the HT004 Preamplifier using a Type-C cable for power.
2. Signal Connection: Connect the signal source to the 'RF-IN' SMA port and the spectrum analyzer (e.g., SA8) to the 'RF-OUT' SMA port.
3. Battery (No Battery Version): If you have the 'No Battery Version', it is compatible with a 3.7V 500mAh 603030 battery (not included).

2.3 HTOOL HT03 Magnetic Field Probe

1. Connection: Connect the HT03 Magnetic Field Probe to the 'RF-IN' port of the HT004 Preamplifier, which is then connected to the SA8 Spectrum Analyzer.
2. Probe Selection: Choose an appropriate probe size for your measurement. Larger probes offer higher sensitivity and cover a larger area but have lower resolution. Smaller probes provide higher resolution for pinpointing interference sources.

3. Operating Instructions

3.1 SA8 Spectrum Analyzer Operation

1. Menu Navigation: Use the 'MKR' (Marker), 'MENU', 'FREQ' (Frequency), 'AMPL' (Amplitude) buttons, and the arrow keys (left, right, up, down) to navigate through the menus and adjust settings. 'SPAN +' and 'SPAN -' buttons adjust the frequency span.
2. Frequency Measurement:
   • From the main menu, select 'Frequency'.
   • Set the 'Center Point' and 'Span' for your desired measurement range.
   • Confirm the 'Power' setting.
   • The spectrum will be displayed on the screen. You can use markers to identify specific frequencies and their amplitudes.
3. Signal Generation: From the main menu, select 'Generator' to configure and output signals.
4. Language Switching: To change the system language, go to the 'Device' menu and select your preferred language (Chinese, Russian, or English).

3.2 HT03 Magnetic Field Probe Usage

The HT03 near-field probe is used in conjunction with a spectrum analyzer (like the SA8) and a preamplifier (like the HT004) to detect and localize electromagnetic interference.

1. Equipment Setup: Connect the near-field probe to the preamplifier, and the preamplifier to the spectrum analyzer.
2. Spectrum Analyzer Settings: Set the spectrum analyzer's frequency range and bandwidth. For initial broad scans, use a high frequency span. Input the correction factor of the preamplifier into the spectrum analyzer if applicable.
3. Probe Selection and Localization:
   • Start with a larger ring magnetic field probe to cover a wider area and identify suspected interference regions.
   • Once a general area is identified, switch to smaller probes to increase resolution and pinpoint the exact source of interference.
   • Move the probe close to the measurement target (e.g., PCB board, components) to detect the direction and strength of magnetic fields.
4. Analysis: Compare the test results of the device under test with a reference device to assess electromagnetic compatibility and identify potential issues.

4. Maintenance

• Cleaning: Keep all devices clean and free from dust and debris. Use a soft, dry cloth for cleaning.
• Storage: Store the devices in a dry, cool environment, away from direct sunlight and extreme temperatures.
• Cable Care: Handle SMA connectors and cables with care to prevent damage. Avoid excessive bending or pulling.
• Battery Care (SA8): If your SA8 has an internal battery, ensure it is charged regularly, especially before long periods of storage, to maintain battery health.
• Firmware Updates: The SA8 supports firmware updates. Check the manufacturer's website for the latest firmware versions and instructions on how to update.

5. Troubleshooting

• Device Not Powering On:
  • Ensure the SA8 side push switch is in the 'ON' position.
  • For HT004, verify the Type-C power cable is securely connected and receiving power.
  • Check battery levels if operating on battery power.
• No Signal Detected:
  • Verify all SMA cable connections are secure between the signal source, preamplifier (if used), probe (if used), and spectrum analyzer.
  • Ensure the frequency range and span settings on the SA8 are appropriate for the signal you are trying to measure.
  • Check the power output of the signal source.
• Inaccurate Readings:
  • Ensure proper calibration if required.
  • Check for external interference sources that might affect measurements.
  • Verify the correct probe size is being used for near-field measurements.
  • Remember that 'Data close enough is normal' for certain measurements, especially when dealing with environmental factors.
• Display Issues:
  • If the screen is unresponsive, try restarting the device.
  • Ensure the screen is clean and free from moisture or debris.

6. Specifications

6.1 HTOOL SA8 Spectrum Analyzer & Signal Generator

• Display: 3.2-inch color resistive touch screen
• Frequency Range: 35 - 6200 MHz
• Scanning Speed: 500 points per point
• Measurement Accuracy: 2dB within 70-75dB dynamic range
• Dimensions: 150 x 75 x 23 mm
• Weight: 380 grams
• Battery Life: Up to 5-8 hours of uninterrupted operation
• Connectivity: Wired data transfer to PC
• Language Support: Russian, English, Chinese
• System Updates: Supported (Sustainable Update)

6.2 HTOOL HT004 Full Band Low Noise Preamplifier

• Power Supply: TYPE-C cable
• Frequency Range: 10 MHz - 6 GHz
• Noise Figure (NF): 5 dB (refer to measured curve for different frequencies)
• Gain: 20 dB (refer to measured curve for different frequencies)
• Dimensions: 4.7 x 4 x 1.4 cm (without protruding SMA)
• Weight: 35 g (including host + TYPE-C cable)
• Current: < 80 mA
• P1dB: 10 dBm @ 2 GHz
• Output Connector: SMA female
• Input and Output Impedance: 50 ohms
• Application Scenarios: BeiDou/GPS receiver, Receiver systems (FM radio, radar), EMC receiver systems, Software radio receiver

6.3 HTOOL HT03 Magnetic Field Probe

• Model: 9KHz-3GHz near-field probe
• Operating Frequency: 9 KHz - 3 GHz
• Connector: SMA female

7. User Tips

• Model Variation: Note that SA and SA8 models may be issued randomly, but their parameters are identical.
• Probe Handling: When using the 9KHz-3GHz near-field probe, keep your hands away from the PCB board to avoid interference and ensure accurate measurements.
• Probe Strategy: For effective interference localization, it is recommended to use a set of probes with multiple sizes. Start with a larger probe for a wide-range scan to identify general areas of concern, then progressively use smaller probes to narrow down and pinpoint the exact source of interference.
• Measurement Tolerance: When performing frequency measurements, slight variations in data are normal. If the data is 'close enough', it is typically within expected operational parameters.

8. Warranty and Support

For warranty information, technical support, and service inquiries, please contact your original seller or refer to the official HTOOL website. The HTOOL SA8 model supports sustainable updates, ensuring ongoing improvements and feature enhancements.